1 1/2 in x 4 ft x 8 ft Halo Exterra Rigid EPS Foam Insulation
R12.9 3 in x 4 ft x 8 ft Beaver Plastics Terrafoam HS-40 High Strength EPS Insulation
R8.6 2 in x 4 ft x 8 ft Beaver Plastics Terrafoam HS-40 High Strength EPS Insulation